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227
Troubleshooting
Maintenance / Product Specifications / Troubleshooting Troubleshooting
■ There is no Sound
■ The Projected Image Is Blurred
The computer is set to
dual screen (multi-
display) mode.
If dual screen mode is selected, change the
computer display output to mirroring mode.
The output setting method varies among computer
manufacturers. For more detailed information, refer
to the manual that came with your computer.
The image files are not
compatible with USB File
Browser.
Projection from USB flash drives requires JPEG
images with a resolution not exceeding 10912x8640,
single-byte alphanumeric file names, and a FAT-
formatted drive.
The LAN cable (shielded
twisted pair) is not
connected correctly.
When [LAN] or [HDBaseT] is selected in the [Input]
menu, check whether the LAN cable (shielded
twisted pair) is connected to the projector correctly
(P81).
Cause Countermeasure
The audio cable is not
connected correctly.
Check the audio cable connection (P79).
The MUTE function is
enabled.
Press the MUTE button on the remote control (P37).
The volume level is
adjusted to the
minimum.
Press the VOL button on the remote control or the
VOL+ button on the side control to adjust the volume
level (P33, P37).
An audio cable with a
built-in resistor is used.
Use an audio cable without a built-in resistor.
Audio in terminal select
is [Off].
Change the Audio In terminal to the appropriate
setting (P160).
Cause Countermeasure
The image is out of
focus.
Adjust the focus (P46).
The distance to the
screen is too short.
Check whether the distance to the screen is
appropriate (P61).
The projector is not
placed straight in front of
the screen.
Check whether the projector is placed obliquely to
the screen. A slight error in the projection angle can
be corrected through the keystone adjustment
function (P101).
Cause Countermeasure
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